Rotary beater.



R. EMMOTT & T. MERGER.

ROTARY BEATBR. APPLICATION FILED SEPT. 2, 1910. 982,942, Patented Jan.31,1911.

2 8HEET88HBET 1, Fig.1.

PETERS co, WASHINGTON, n c.

n15 NORRIS R. BMMOTT & T. MERGE-R. ROTARY HEATER. APPLICATION 151L111) SEPT. 2, 1910-.

982,942, Patented Jan.31,1911.

2 SHEETS-SHEET 2.

Fig.2.

THE NORRIS PETERS 0a., WASHINGTON, m c.

ROBERT EMMOTT AND THOMAS MERCER, OF ENTVJISTLE, NEAR. BOLTON, ENGLAND; SAID MERCER- ASSIGNOR TO SAED EMMOTT.

ROTARY BEATER.

Specification of Letters Patent. Patented Jan, 31, 1911,

Application filed September 2, 1910. Serial No. 580,215.

To all whom it may concern: 7

Be it known that we, Ronmrr EMMOTT and TI-IoMAs MERGER, subjects of King George V of Great Britain, and residents of Entwistle, near Bolton, in the county of Lancaster, England, have invented certain new and useful Improvements in Rotary Beaters, of which the following description, in connection with the accompanying drawings, is a specification.

This invention relates to machines for pulverizing or disintegrating mineral or like substances or materials, of the type in which hammers or heaters are pivotally secured lution of the disks and to heat upon the material as its first enters the machine and rests upon said grate or grid, this preliminary action reducing the shale, stone or other solid substance or material to smaller pieces capable of passing through the openings in the said grate and dropping down into the machine to be thoroughly pulverized or reduced to the desired degree of fineness between the hammers or heaters and the lower curved grid or grate.

on shafts or studs carried by rotating disks In the accompanying drawings, to which 10 and by the impact of said hammers or heatreference is hereafter had :Figure l is an ers upon the substances or materials fed to edge or front view, looking in the direction the machine, break up, crush or pulverize of arrow A, Fig. 2, of a crushing, pulversame, the object of our improvements being izing or disintegrating machine constructed to provide means in conjunction with the according to our invention, the front famhammers or heaters whereby a more effective ing and some of the upper and lower series action is obtained and the materials or suhof bars being broken away, to show the parts stances are successfully broken up or pulclearly, and Fig. 2 is a transverse section, verized to the desired degree of fineness. taken on line B, B, in Fig. 1.

According to our invention, we dispense Referring to the drawings letter a rep- 30 with the grid or grids previously proposed resents a series of disks inclosed within a to surround or inclose the disks carrying the framework 7) and mounted on the main drivhammers or heaters and through which the ing shaft 0 of the machine, the disks having said hammers or heaters extend as they are secured thereto a series of rods or spindles (Z thrown out by centrifugal action and, in lieu thereof, we employ a grid or grate extending partially around the disks at the lower sides thereof and clear of the heaters or hammers, the grid or grate being formed of angular bars so arranged as to form opposite each heater or hammer a V shaped groove or recess with a similar inverted V shaped groove or recess on the under side, there being a small space left between each bar to admit of the crushed or pulverized material passing therethrongh when reduced to a given degree of fineness.

The extremities of the hammers or heaters extend into and nearly to the bottoms of the respective V grooves or recesses and by the successive rapid impacts of same upon the material fed into the machine, it is rapidly and efi'ectively broken up or reduced to a degree of fineness which admits of same falling through the openings or interstices between the bars of the grating or grid and being delivered to a conveyer to be screened or otherwise dealt with.

Over the rotating disks carrying the ham,- mers or heaters, we place an inclined grate extending longitudinally through each disk and carrying loosely thereon, between each pair of disks, a series of heaters or hammers 6 adapted to be thrown outwardly by centrifugal action as the disks revolve, the whole being constructed and arranged in the ordinary manner and forming no part of our invention.

In our invention, the grid or grids through which the hammers e have previously been thrown to pulverize stone or the like are dispensed with and, in place thereof, we employ a grid or grate 7" extending partially around the disks a at the lower sides thereof and clear of the hammers, and composed preferably of a series of angular bars so disposed relatively one to the other as to form opposite the path of each heater or hammer a V shaped groove or recess 9 with a similar inverted V shaped groove or recess h on the under or outer side and leaving between each pair of angular bars, for the whole or practically the whole length thereof, a small space or opening '5 to admit of the crushed or pulverized material passing therethrough when reduced to a given degree of fineness.

The angular bars of the grid or grate f are in this instance secured at each end to cross girths or rails j, j, and are preferably slightly eccentric to the disks a in order to give greater clearance to the heaters or hammers e on entering and leaving the grooves or recesses 9 than at the middle portion of their traverse through the said grooves or recesses.

The angular bars of the grate or grid f are adjusted truly with respect to each other and to the hammers or beaters e by the setting-up bar 7a.

In a suitable position over the disks a is supported an inclined grate or grid Z preferably composed of single bars secured at each end to cross girths or rails m, m, and adjusted at equal distances apart to form openings or spaces a of a given area to suit the maximum size of the portions of the material to be fed into the machine and through which the hammers or beaters c are adapted to extend in the revolution of the disks and to beat upon the material as it first enters the machine and rests upon the said grate or grid.

The bars of the curved grate f are arranged closer together than the bars of the inclined grate Z, and the hammers are arranged to work at a less depth between the bars of the grate than between the bars of the grate Z, so that the material is pulverized in two successive operations.

The stone or other hard material or substance to be crushed or pulverized is delivered into a hopper 0 the hinged doors 2) in which open out under the weight thereof and allow it to fall on to the grate or grid Z, the doors being self-actingly closed after each delivery by the counter-balance weights Q,

The blocks of stone or other material thus deposited on the grate Z are struck in rapid succession by the hammers or beaters e as they are carried around by the revolving disks and thus broken up into small pieces adapted to fall by gravity through the spaces a on to the grate or grid 7 at one side thereof, the action of the hammers or beaters on the material lodging in the angular grooves g reducing it to the desired degree of fineness which permits of its escape through the openings 2', the diverging walls of the bars at it immediately below said openings insuring the clearance of the ground or pulverized material from the grate or grid and avoiding any choking up or obstruction of the passages or openings.

The pulverized material may be delivered to a conveyer to be screened or otherwise dealt with.

The front wall of the inlet portion of the machine is preferably inclined as shown to minimize liability of the material banking up or blocking the thoroughfare.

The shape of the bars of the grid f is very effective in combination with the hammers or beaters entering into the grooves or recesses thereof, but not through the openings between the bars, in reducing the material to the fineness required.

The front edges of the hammers or beaters may be beveled or made knife edged as shown to give a cutting blow through the upper grate or grid Z.

The machine could be used for stone breaking alone, or for grinding or disintegrating any other suitable substances or materials which it is and could be adapted to deal with.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is 1. In a rotary beater, the combination, with a casing, of a driving shaft journaled in the casing and having disks secured on it, hammers pivotally supported by the said disks, a flat grate secured in an inclined position above and to one side of the said shaft so that the hammers work in the spaces between its bars, and a curved grate secured with its middle part vertically un der the said shaft and nearer to it than its end portions and so that the hammers work in the spaces between them but at a less mers and grates operating to pulverize the material in two successive operations.

2. In a rotary beater, the combination, with a casing, of a driving shaft journaled in the casing and having disks secured on it, hammers pivotally supported by the said disks, a flat grate secured in an inclined position above and to one side of the said shaft so that the hammers work in the spaces between its bars, a curved grate secured with its middle part vertically under the said shaft and nearer to it than its end portions, the bars of the said curved grate being arranged closer together than the bars of the flat grate and so that the hammers also work in the spaces between them but at a less depth, and a setting-up bar secured to the casing and engaging with the middle part of the curved grate.

In testimony whereof we affix our signatures in the presence of two witnesses.

ROBERT EMMOTT. THOMAS MERCER.

Witnesses ERNALD SIMrsoN MosnLnY, MALCOLM SMETHURST. 

